22212302544 has 320 divisors, whose sum is σ = 69424128000. Its totient is φ = 6773465088.

The previous prime is 22212302513. The next prime is 22212302603. The reversal of 22212302544 is 44520321222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57995377 + ... + 57995759.

It is an arithmetic number, because the mean of its divisors is an integer number (216950400).

Almost surely, 2^22212302544 is an apocalyptic number.

22212302544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22212302544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34712064000).

22212302544 is an abundant number, since it is smaller than the sum of its proper divisors (47211825456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22212302544 is a wasteful number, since it uses less digits than its factorization.

22212302544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 22212302544 its reverse (44520321222), we get a palindrome (66732623766).

The spelling of 22212302544 in words is "twenty-two billion, two hundred twelve million, three hundred two thousand, five hundred forty-four".